Panasonic LUMIX G 25mm f/1.7 ASPH
Panasonic's LUMIX G 25mm f/1.7 ASPH is the MFT nifty-fifty — a 50mm-equivalent fast prime weighing just 125g with a 46mm thread, and an obvious first prime for any Micro Four Thirds kit. It's a strong-value compact low-light and portrait lens on Panasonic and OM System bodies. There's no in-lens OIS, so it leans on body IBIS, and it isn't weather-sealed for pro field work.
Scores
BreakdownHideOverall65±3Caliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
Scores
BreakdownHideCaliber-forward blend — tier caliber + within-tier price rank 30%, value 25%, confidence 20%, compatibility 15%, upgrade path 10% — renormalized over applicable dimensions.
The ± band on the overall score reflects sourcing confidence — wider when fewer specs are verified.
How each score is computed: our scoring methodology.
Specifications
| Spec | Value | Verification |
|---|---|---|
| mount | mftSourced | Sourced |
| coverage | Micro Four ThirdsSourced | Sourced |
| focal length | 25mmSourced | Sourced |
| max aperture | f/1.7Sourced | Sourced |
| filter thread (mm) | 46Sourced | Sourced |
| stabilized | noSourced | Sourced |
| weight (g) | 125Sourced | Sourced |
7/7 detail specs sourced. Amber rows are flagged for verification — we show them as reported, not confirmed.
Verdict
Best for
- The MFT nifty-fifty — 50mm-equiv fast prime, 125g, first prime for any MFT kit
- Compact low-light/portrait lens for Panasonic and OM System bodies
Who should skip this
- In-lens stabilization needs (no OIS — relies on body IBIS where present)
- Weather-sealed pro work
Where to buy
List price $300
Prices are a guide and can change — confirm the current price on the retailer's site before buying.
Prices last checked Jul 8, 2026 — retailer prices change often, so click through for the current price.
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Ecosystem
Compatibility
Built around Micro Four Thirds. Make sure the rest of your build uses the same platform before you buy — mismatched sockets, mounts or standards are the most common return reason. Check it in the builder →
Upgrade path
Outgrow it and the Venus Optics Laowa 7.5mm f/2 MFT is the natural next step up in lenses. See it →